As a Senior macOS QA Engineer, you will play a critical role in validating the stability, security, and compatibility of the company’s Secure Enclave technology for macOS. This is a deeply technical manual QA role requiring hands-on experience with macOS internals, system extensions, and application behavior. You will work alongside a highly experienced team of engineers and reverse engineers and will need to understand system-level behaviors to craft comprehensive test plans and exploratory test scenarios.
What You Will Do:
● Test macOS security features that span across system extensions, Endpoint Security, and Network Extension frameworks.
● Design and execute manual test plans for system extensions, inter-process communications (XPC), and low-level OS integration points.
● Explore and document edge cases, race conditions, compatibility scenarios, and regressions across macOS versions.
● Reproduce and isolate complex issues related to sandboxing, SIP/TCC interactions, launch services, and daemon behaviors.
● Work directly with development, support, product, and automation teams to triage, verify, and regress bugs and compatibility issues.
● Validate interactions between the client Secure Enclave and third-party macOS apps and services.
● Collaborate with SDETs to turn exploratory and regression cases into automation candidates.
● Maintain deep familiarity with changes in macOS releases and how they might impact functionality and compatibility.
What You Will Bring:
● 5+ years in QA for macOS applications, with a focus on security, system-level, or compatibility testing.
● Strong understanding of macOS internals: System Extensions, Endpoint Security, XPC, TCC, SIP, Launch Services, file systems, etc.
● Familiarity with macOS diagnostic and monitoring tools (e.g., Console, Activity Monitor, Instruments, fs_usage, dtrace, tcpdump, lldb).
● Experience testing low-level products (VPNs, endpoint security, antivirus, etc.).
● Ability to read crash reports, debug logs, and identify root causes.
● Ability to work independently and deeply investigate issues before escalating.
● Excellent written communication for clear test case documentation and bug reports.
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